Fly-screen.



N. LEWIS.

FLY SCREEN.

APPLmATIoN FILED Nov. 12. 1910.

0 1,077,247, l Patented oet.28,1913.

.l, Y g 7 COLUMNA PLANOGRAPH CO.,WASHINGTON, Dfc.

UNTE

NELSON Lewis,y orv BOULDER, ootonazoo.V

FLY-SCREEN.

Spec'cation of ILetters iatent.

raeentefioet. 2e, i913.

Application filed November 12, 1916. YSerial No. 592,005?.

' Colorado, have invented n-ew and useful linprovements in Fly-Screens,of which the following is a specification.

This invention relates to window and vdoor screens used for theexclusion of `iies and other insects.

The primary object of the invention is to take advantage of the wellknown aptitude of such insects when lying upon a vertical surface tocrawl upward and to provid-e for an exit from, but no entrance to theroom.

Another object'of the invention is to providea frame` for a door orwindow having one or more panels termed or" reticulated material, thesame being inclined from-the bottoni of the door' or window frame towardthe upper portion thereof, and wheny more than one ot Saidpanelsareemployed a space 1s formed between the saine, the said space not onlyproviding for the escape of air, so as to thoroughly ventilatel the roomin which the screen is positioned, but also serving as a means fordirecting the insect upwardly upon the panel to the exit thereof.A

A still further object of the invention is to provide a window or doorscreen having a plurality of reticulated panels, the lower insects mayreadily crawl between the spaces formed between each panel and thepocket of the adjacent panel, but wherein the said pocket serves as ameans for preventing the downward crawling of the insect to reenter theroom.

With the above and other objects in view, which will appear as thedescription progresses, the invention resides'in the novel constructionand arrangement of parts hereinafter fully described and claimed.

In the accompanying drawing Figurel is a perspective view of a doorframe pro videdfwithifthe improved screen.` Fig. 2l is a central"vertic'al sectional view italreii-l on a line with 'Y one ofi' theoutlets formed in* the upper bar ofthe trame. Fig.13 isa-similarsectional view" taken on* the line *3e-3 of Figfl.

In' the accompanying drawings the device has been illustratedfas`appliedto the trame of ascreen door, butitpis to be' understood that theshowing thereinis-'merely Aillustrative and jI'do notlimittheapplication of the peculiar'arrangementof screen panels'to anyparticularstructure,as the said panels could be used with equaletli'ciencyupon a window screen frame, door or window'openings or thelike.

ln'the accompanying drawings the numeral l designates an ordinary screendoor' This irame l has itsverticalstiles lprovided with inclined groovesor recesses 2.'

frame.

they grooves` or recesses 2 maybe ottany'desired number andthe saidgrooves are adapt- -ed for the reception of panels formed of re-`ticulated material, suchas awire meshing 3.' ihe` door frame is providedwith a plurality ot o'ppositelyv disposed transversely ar.- ranged:bars'et', the latter `connecting tlief ver' `ticalrstiles of the frameand being adapted to serve as hand holds whereby the doorzmav: ibe`swung upon its hinges as well asl for aii addition-al purpose, which isnow to be dcscribed.

The first groove or recess 2 starts from the lower inner face of theframe l and terminates approximately central of the outer bar a asclearly illustrated in the figures of the drawings. When the iirst panelmaking up the screen is positioned within the oppositely dispos-edrecesses 2, the edges thereof are secured upon the vertical st-ilesthrough the medium of brads or nails 5. The second or succeeding recess2 is started upon the inner face of the door directly opposite theterminal of the first panel. This groove or recess is extended towardand terminates approximatelycentral of the second bar 4 upon the outerface of the frame 1. The reticulated panel 3 is. positioned within thesaid grooves or recesses and retained through the medii'im srnrns Pannionirica..

of the elements 5. The lower extremity of positioned a slight distancebelow the top of the outer bar and the pocket 6 is secured theretothrough the medium of suitable springs or other attaching devices.

rI`he panels making up the screen are each constructed in a mannersimilar to that above described and are also connected with the sidestiles of the door by having their edges inserted within the grooves orrecesses and retained therein by brads, nails or the like. The upperconnecting bar 7 of the door is formed with a pair of recesses ordepressions 8, Each of these recesses are preferably arranged centrallyof the connecting bar 7 and extend longitudinally a suitable distancebeyond their points of connection of the said bar with the stiles of thedoor. The recesses have their side walls parallel and their facesarranged in an inclination similar to the inclined panels 3. The upperscreen section or panel, which is adapted to be retained hy the upperouter bar 4 is arranged directly opposite the top o-f the crosssectional U- shaped pocket 9 fo-rmed in the panels 10 which engage theinclined depressions 8.

With ascreen constructed as above described, the insects upon theinterior of a room may crawl upwardly between the panels to find a freeexit through the passage formed between the rounded pockets 6 and thetop of the next lowest screen. Most all insects have an aptitude forseeking light and fresh air and very few insects are known to crawldownwardly toward a darkened surface. The space between the screenpanels aifords a lighted surface as well as an exit of impure air fromthe room and the said air will serve as a means for forcing the insectsupon any of the panels through the exit. The pockets 6 are adapted toserve as retarding elements for such insects as fall upon the screens orattempt to descend downwardly to gain an entrance into the room uponwhich the door is positioned.

Having thus described the invention, what I claim is,

A screen comprising a frame having vertical stiles, bars attached to thestiles against the inner and outer surfaces thereof and arranged inpairs, the outer members of the pairs of bars being located at higherpoints along the stiles than the inner members of the pairs of bars,screen panels having their upper edges connected with the inner surfacesof the upper and outer bars and their lower portions connected with theinner surfaces of the next adjacent inner lower bars, the intermediateportions of the panels lying in planes which extend transversely acrossthe stiles from the inner to the outer surfaces thereof and which extendfrom one set of bars to the next adjacent setof bars, the lower portionsof the panels being curved inwardly forming pockets located between theinner surfaces of the members of the pairs of bars.

In testimony whereof I aiiiX my signature in presence of two witnesses.

NELSON LEWIS.

Witnesses IRWIN E. KEELER,

J. A. Merian.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

